While I was about to get into my car to go to work, I was looking at an airplane flying over head when I noticed the sun reflecting off something bright in the sky (behind the plane and off in the distance). It was extrememly far away and I was unsure of the distance. I stood for approx. 5 minutes staring at it wondering what it was and I noticed that it didn't move, but it was "twinkling" which indicated to me that it was rotating.

I ran upstairs to my apartment and got my camera and my husband so he can see it too. I put my 75/300 mm lens on my camera and started taking pictures of this thing. I took pictures for about 15 minutes, then realized I was going to be late for work. My husband and I stood for about 10 more minutes or so and stared at it while we hypothesized about what it could be. Right before I got into my car, my husband gasped and he said, "OMG, it disappeared!" When I turned back to look at it again, it was gone.

I have no idea what it was, but I know that objects don't stay in one place for 30 minutes when they are in the sky.